Comparative Study Of Plants Waste Biosorption Efficiency | 23863
Hydrology: Current Research
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In this study, sorption efficacy study of selected bio- materials was carried known for their potential usage as natural dyes.
Hibiscus rosa sinensis flower and Trapa natans fruit skin (exocarp) were used for sorption study. These plant parts after the
extraction of natural dye and evaluated for bio-sorption of heavy metal from effluent. Batch tests indicated that hexavalent
chromium sorption capacity (qe) followed the sequence qe (Trapa) > qe (Hibiscus). Due to high sorptive capacity, Trapa fruit
skin (exocarp) was selected for further processes like drying crushing and sieving in powder form of even mess size. Sorption
kinetic data has shown first order reversible kinetic model for all the sorbents in which bio- sorption of chromium by Trapa
natans biomass occurred in two stages. In the first stage, 95% sorption was reported for Cr (VI) in 15 minutes followed by a
slower second stage which reached in equilibrium in one hour at which all heavy metals were 90-98% bio-sorbed by Trapa
natans. Experimentally reported equilibrium data fitted well to both the Langmuir and Freundlich Isotherms. The FT-IR, XRD
and XPS analysis showed that the main mechanism of Cr(VI) biosorption onto Trapa dried powder was their binding with
Ashish Kr. Dwivedi completed his PhD work from Indian Institute of Technology, Kanpur India in Applied/Environmental Chemistry under Dr. Padma S Vankar
Principal Research Scientist Indian Institute of Technology, Kanpur. He is currently DST-Fast Track young scientist fellow in Department of Chemistry at Indian
Institute of Technology, Kanpur. He has published 6 international publications in peer reviewed journals and 2 book chapters.
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